- P/E Ratio
- Pair Trade
- Pairs – Net Returns
- Pairs – Ratio
- Pairs – Risk Arb
- Paper Trading Account
- Par Value
- Parabolic SAR
- Parity
- Parity Bonds
- Partial (Transfer)
- Partial Call
- Participating Preferred Stock
- Partnership
- Pass-Through Certificates
- Passive Relative Order
- Pathfinder
- Patience
- Pattern Day Trader
- Payment Date
- Payment for Order Flow
- Payment in Lieu of Dividends
- Payoff Diagram
- Payout Ratio (TTM)
- Peak-to-Valley
- Pegged to Benchmark Order
- Pegged to Market Order
- Pegged to Market Volatility
- Pegged to Midpoint Order
- Pegged to Midpoint Volatility
- Pegged to Primary Order
- Pegged to Primary Volatility
- Pegged to Stock Order
- Pegged to Surface Volatility
- Pegging
- Penalty Bid
- Pending Orders Page
- Penny Stock
- Percent B Indicator
- Percent Markup (%)
- Percent of Ownership
- Percent of Volume Algo
- Percentage Price Oscillator
- Percentage Volume Oscillator
- Performance Indicator
- Performance Measure
- Performance Profile
- Period Return
- Permissioned Blockchains
- Personal Expenditure
- Personal Income
- Petroleum Downstream
- Petroleum Upstream
- Phillips Curve
- PHLX
- Physical
- Physical Commodity
- Physical Delivery Option
- Physical Market
- Pin Risk
- PIP
- Pivot Points
- Pivot Points High/Low
- Planned Amortization Class (PAC)
- Pool
- Portfolio
- Portfolio (Jefferies)
- Portfolio Checkup
- Portfolio Margin Account
- Portfolio or Watchlist News
- Portfolio Performance Profile
- Portfolio Window
- PortfolioAnalyst
- Position
- Position Instruction
- Position Transfer Basis
- Position Transfer between Master and Sub
- Position Transfer Type
- Positive Periods
- Positive Volume Index (PVI)
- Post
- Post-Effective Period
- Post-Expiry Excess (predicted)
- Post-Expiry Margin @ Open (predicted)
- Post-Trade Allocations
- Pre-Borrow
- Pre-Borrow Program
- Pre-organization Certificate
- Pre-refunding
- Pre-Trade Allocations
- Pre/Post
- Prearranged Trading
- Precautionary Settings
- Predefined Watchlist
- Preemptive Rights
- Preferred Stock
- Premium
- Premium Bond
- Premium Spread
- Prepayment Rate
- Prepayment Risk
- Preregistration (Pre-filing) Period
- Preservation of Capital
- Previous Day Equity with Loan Value
- Price Alerts
- Price Discovery
- Price History
- Price Improvement
- Price Improvement Auction
- Price Inline
- Price Movement Alarms
- Price Oscillator
- Price Spread
- Price Target History
- Price Variant Percentage of Volume Strategy
- Price Volume Trend Indicator
- Price-to-Book Ratio
- Price-to-Cash Flow Ratio
- Price-to-Earnings Ratio
- Price-to-Sales Ratio
- Price/Risk Analytics
- Primary Authorizer
- Primary Beneficiary
- Primary Market
- Principal
- Principal Only (PO) Securities
- Principles for Responsible Investment
- Private Activity or Alternative Minimum Tax (AMT) Bonds
- Private Equity
- Private Equity Fund
- Private Investment in Public Equity (PIPE)
- Private Key
- Private Placement
- Probability Lab
- Producer (AP)
- Professional Status
- Profit and Loss
- Program-Related Investments
- Program.py
- Projected Look Ahead Initial Margin
- Projected Look Ahead Maintenance Margin
- Projected Overnight Initial Margin
- Projected Overnight Maintenance Margin
- Prompt Date
- Proof-of-Authority (PoA)
- Proof-of-Stake (PoS)
- Proof-of-Work (PoW)
- Proprietary Trading Group
- Prospectus
- Protective Call
- Protective Put
- PSA Model
- Public Elevators
- Public Key
- Public Ledger
- Purchase and Sale Statement (P&S)
- Purchasing Managers Index (PMI)
- Pure Water
- Put
- Put Backspread
- Put Provision
- Put Spread
- Pyramiding
- Python API